Electric switch.



B. P. SWYERS.

ELECTRIC swn. APPLwATIQH fm1; mir-1.7. 1912.-

Patented Aug. 11, 1914.

iUNITED STATES TENT oFFion.

BRICE'P-SWY1SRS, 0F PITTSBURGH, PENNSYLVANIA, illtSSIGNOEt` BY DIRECT AND ASSIGNMENTS, 'OF EIGHT THIRTY-SECONDS T0 BRICE P. S\VYERS. SEVEN THIRTY-SECONDS TO GEORGE E. LORCH, FOUR THIRTY-SECONDS TO GEORGE M.

DAVIS',

TWO THIRTY-SECONDS T0 MARGARET MAU'L, AND SEVEN THIRTY-SEC- ONDS TQ LOUIS LORCH, JR., ALL 0F PITTSBURGH, PENNSYLVANIA, AND FOUR THIRTYFSECONDS T0 JOHN H. WAGNER, OF MOUNT OLIVER BOROUGH, PENNSYL- VANIA.

ELECTRIC SWITC Specification of Letters Patent.

Patented Aug. 11, 1914..

Application filed September 17. 1912. Serial No. 720.745.

T o all whomt't may concern.'

Be. it known that l. limer, P. Swvnns, a resident of Pittsburgh, in theeountv of Allegheny| and Stale-ot Peiinsylrania, hai'e invented a new anduseful Improvement m Electric Switches; and I do hereby declare Lhe following;r to be a full,`clear, and exact description thereof.

vMv invention relates to locks, or electric switches for use with internal combustion engines and has s perialv reference to electric switches for motor vehicles, wherein the engines cannot he started unless the operator .nnderstainis the operation and combination of the switch.

At the present time when the operator of an automobile happens to leave his car standing; for a few moment-s while he enters a building or attends to other mtters he has no assurance that he will tin his car upon his return, as persons. known as joy riders often times enter the machine and start the same, which in many @H588 results in serious injury to the machine.l even if the saine 'is' ever locatedv The.` object of my invention is to provide a cheap, simple and eliicient form of Ielectric switch, which when used with motor vehicles, such as' automobiles, will overcome the. above objeftions and thus eliminate the possibility vof the car being started and stolen by mercenary persons, thereby iusuring the owner -or operator of finding the car upon his return. i

My uicntion consists, generally stated, in the novel arrangement, construction and combination of parts as hereinafter more specifically set forth and described and par-` ticularly pointed out in the claims.

To enable. others skilled in theinz'lt to which my invention appertains to construct and use my improved electric switch, I will describe the same more fully referring to the accompanying drawing, in which- Figure l is a top plan view of my improved electric switch. Fig. 2 is a crosssectional view of same. Fig. 3 is a developed plan view of the contact rings showing the connections between the same. .Fig 4 is a partial end view of one of the outer l odd numerals 9 around flange portion 3 into which is inserted a dass plate 4. Within the metal'casing or frame 1 is an auxiliary wall 5, which has. an

cpp-er flange 6 extending entirely around the samt and a dial 7 is secured thereto in any suitable manner. The dial 7 has the the outer edge of the sa me and kthe even numerals 8 immediately within the circle of the odd numerals.` A

shaft 10 is journaled at its lowe'r end Within the base 2 and at a point "substantially near its upper end within thedal 7, while a small portion 11 on said-shaft extends through the dial 7 and has a short hand 12 firmly secured thereto. AtiI a point substantially near the bottom of the easingr 1 is a fiber disk 13. which is connected to projections 14 on the side of the 'auxiliary Wall 5, and such disk is providediwith a Contact ring 15 on the upper face ofthe same and 'a split Contact ring 16 imme ately without said first named ring7 whirled-between the ends of said s lit ring is a lug which has a wire 18 lea( ing to a spark plug, as later described. The ring 15 is also provided with a wire 19, which is connected at any convenient poi'n. on said ring and such wire leads to one. side of the battery or magneto '20, which is used for energizing the electric circuit, later referred to. far distant from the top wall 5, and firmly secured to flanges 21 on Said 'all, is another fiber disk 22, vwhich is provided with an inner contact ring 23 and also an outer split Contact ring 24. The split contact ring 24 has a lug 25 which has a wire 26 connected thereto and leading to the spark plug. The ring 23.isalso pro- At a point not of the auxiliaryl vided with a wire 27, which is connected to any convenient point on the same, and-such wire connects to o-ne side of the battery or magneto 20, before referred to.

. between the end of -said arm and said contact plate and has a tendency to press the contact plate away from the end of such arm and ina vertical direction. AThe lower face of the contact plate is provided with a rib 32, as later explained. Immediately above the lower contact arm 28 is a small )bevel gear 33, and such gear is firmly se- 'curedto the shaft 10 and meshes with the bevel gearl 34 onr the end of the small shaft 35, such shaft'being journaled in a housing 36 which is secured to the bottom of the upper ber disk 22 and also journaled in the side of the frame 1. The shaft 35 extends through ,the side of the frame 1 and fhas a small knurled thumb screw 37, on the end of the' same. Immediately above the `upper fiber'disk 22 is" another arm 38 which is in every respectlike the lower arm 28, except that such ar is secured to a small' hollow shaft 39, which extends around the shaft 10 and hasa sliding connection therewith. The-.hollow shaft 39 extends below the upper fiber disk 22 and is provided with a bevel gear upon the end of the same which meshes with the bevel gear 1.21 on the end of the shaft 42, and such shaft is suit` ably journaledin va small journal 43 on the underside o-f the disk 22, and in the side otY the frame 1. 'The-shaft 42 extends through the frame 1 and has a small knurled thumb screw 44 on the end thereof. The shafts 35 and 42 are practically on the same center line so that the knurled thumb screws 37 and 44 are diametrically'fopposite one another and with the screw 37 slightly lower than the screw 4:4.

At the upper end of the hollow shaft 89 a long hand 45 is firmly secured thereto. The split contact rings 16 and 24 are provided with notches 4G throughout their entire lengthv so that the rib 32 on the bottom of the contact plate 29 will engage therein as it 'passes over the same. The contact plugs 17 and 25 are also provided with a. notch 47 in the same so that when the contact plate 29 passes through the ring and lugr it will be'impossible to tell when the same is in contact with said lug.

It will he seen that the hands 12 and a5 may be set'a't any combination of numbers g so that'tl'ieoperator must have the hands set at certain particular'"numbers softhati the arms 28 and 3S will engage or make l contact with the lugs between the ends of the outer rings and their respective disks. In this way Fig. 3 showing the diagrammatic view of the contact rings may be cmployed as the electric circuit passes from the battery out through the wire 19` along the Contact ring 15 then on the contact plate 32 to the lug 17, while from the lug 17 the circuit passes through the wire 18 to the sparkplug and from the spark plug,Y along the wire 2G to the lug 25, and from the lug through thc contact plate 32 to the ring:l 23 along the wire 27 to thc battery 20, thus making a complete circuit. It desired, a wire 51 may be connected between the split rings 1li and 24 and an alarm bell 52 placed in the circuit. In this way, when the contact button on the machine is thrown oil and the arms 28 and 38 are in a position for making contact with the split rings 16 and 24, if the current wusxtthen introduced into the line by throwing the usual contact button 'or switch a complete electric circuit would be made from the battery 20 along the wire .19, contact ring 15, contact plate 32, split ring 1G, wire 51 to the alarm and continuiur on the wire 51 s lit rin 24 contact' plate 32, Contact ring 23 and the wire 27 to the battery 20.

Fig. (3 shows a modified form of the electric switch wherein the lbevel gears are eliminated and the mechanism simplified. liu this construction the hollow shaft 3) will entend entirely throiurh the casing 2 and will he provided at. its lowcr end `with a thumb screw 48 while the shaft 10 has a thumb screw 48; Thelower liber arm 28 is secured to the shaft 10 through a slot 50 in the hollowl shaft 39 while theupper fiber arm 38 is secured to the l: low shaft 59 as in the construction dest-i ad. thus bc seen that with the use of my proved electric switch, it will he impossible, as in the case of automobiles, to get a spark in the combustion chamber of the engine unless the Contact platos 'are in engagement or contact with thelugs 17 and 25, and as there is practically no connection between the arms 35 and 38 many different combinations could be applied without success. The coinbiuation may he cha'nged at. any time hy .simply changing the ,position of the hands in regard to the dial numbers.

Various other modifications and changes in' the design, application and construct-ion of my improved electric switch may he resorted to without departing from the spirit of my invention or sacrificing any of its advantages.

4What I claim as m` invention. and desire to secure by Letters-` atent, is

l. A switch for electric circuits comprising Atwo pairs of 'Contact rings, one ring of each pair beingr broken, a contact between the ends of each broken ring, a shaft having an arm attached thereto, a hollow shaft fitting around said rst named shaft and having an arm attached thereto, each of said arms having a'ocontact portion thereon for electrically connecting each pair of rings,

,and means for rotating said shafts and arms.

electrically connecting each pai-r of r n'gs,4

and geared means for rotating said sha and arms.

3. A switch for electric circuits comprising two pairs of contact rings, one ring of each pair being broken, a contact between the ends of each broken ring, a shaft having .an arm attached thereto, a hollow shaft 'titting around said first named shaft and hving an arm attached thereto, each ofgsaid electrically connectin each pair of rings, means for rotating sai shafts and arms, and

arms having a contact portion thereon Vfor electrically connecting each pair of rings, 'geared means for rotating said shafts and arms, and means carried on each offsaid shafts for indicating the position of said arme. f

5. A switch for' electric circuits comprising two pairs of contact rings, one ring of dach pair` being broken, a contact 'between the ends of each broken ring, a sh 4ft having an arm attached thereto,.a hollovgyshaft litting around said first named shaft and having an arm attached thereto, each of said arms having a contact portion thereon for electrically connecting each pair of rings, means for rotating said shafts and arms, kand a hand carried on each of said shafts for indicatin the position of ,said arms.

)6] A switch for electric circuits comprisin'glt-,wo pairs of contact rings, one ring of each-pair being broken, a contact between the endsl of .each broken ring a'shat having an arm/"attached thereto, afli lillow shaft tting around said first named shaft and havin an ing a contact portiorthereon for electrically arms having a contact portion thereon for arm attached theretoyeach of said arms avmeans carried on each of said shafts for indioating the position of said arms.

4. A `:switc for electric circuits compris` ing two pairs of contact rings, one ring. of each' pair being broken, a Contact between the ends of each broken ring, a shaft having an arm attached thereto, "a hollow shaft fitting around said first named shaft and having an arm attached thereto, each of said l co ectingeach gair of rings, geared means nErotating sai shafts and arms, and a carried on each of said shafts for infting the position of said arms.

testimony whereof, I, the said BRICE P. S rens, have hereunto set my hand.

l', BRICE P. SWYERS. iVitnesses:`

JN. Cooxn,

for

T. B. HUMPHRIES. 

